|Eye Color||Light blue
|Theme Color||Dark Red|
"Today might've been a fluke of luck, Cure Secret... But luck's bound to run out." - Gero in episode 1.
In his normal form
Gero has extremely light blue eyes, they are almost white (which makes it look like he doesn't have irises nor pupils, which he has, they are just extremely light in colour). He has ebony black hair, and is extremely pale, almost to the extent that he's gray. He does wear a warrior-kind of outfit, with a silver chestplate decorated in dark red, and armour on arms and legs with the same colouration. He does also wear a bloodred cape.
In human/disguised form
When in disguise/his human form, he is blonde, and has royal blue eyes. His skin is normal looking for a human, yet a bit pale. Depending on the situation, he has different clothes.
Gero (下呂?): Gero is a basque name meaning "Future".